Background Pony #2C21
Sources: https://www.deviantart.com/xxxdisneylvrxxx/art/20-Cooler-323319619
Sources mentioned in original source: https://www.deviantart.com/cloudshadezer0/art/Dashing-Dashie-270614491 https://www.deviantart.com/stinkehund/art/Dash-sleeping-206751743